Which equals (√20-√3) (√20+√3)

Answers

Answer 1

Answer:

answer is 17

Step-by-step explanation:

by (a+b)(a-b) = a²-b² identity

(√20-√3) (√20+√3)

= √20²-√3²

=20-3

=17


Related Questions

Statements Reasons
Given: Circle X with radius r and circle
Y with radius s
Prove: Circle X is similar to circle Y.
translate X to Y
circle X - circle Y
dilate circle X by sir
Circle with center X
has radius r
circle with center Y
has radius s
Statements
Reasons
Assemble the proof by dragging tiles to
the Statements and Reasons columns.

Answers

Answer:1. Circle with center X had radius r ; Given

Circle with center Y had radius Y has radius S ; Given

Translate X to Y ; Translation is a similarity transformation

Dilate circle X by s/r ; Dilation is a similarity transformation

Circle X ~ Circle Y ; a composition of similarity transformation maps circle X to circle Y

Step-by-step explanation:

Answer:

Step-by-step explanation:

:)

Write an equation that models this situation. Anna wants to give each of the 12 friends who attend her birthday party 5 chocolate truffles. How many chocolate truffles (x) does Anna need?

A. 5/x = 12

B.5x = 12

C.x/5 = 12

D. x + 5 =12

Answers

The answer is B. 5x = 12

Amy has 4 pounds of ground pork to make meatballs. She uses 5/8 pound per meatball to make 6 meatballs. How many 1/8 ​-pound meatballs can amy make with the remaining ​?

Answers

6 meatballs * (⅝ pound)/meatball = 3.75 pounds
3.75 pounds was used. 0.25 remains.

0.25 pound * (1 meatball)/(⅛ pound) = 2 meatballs

Can u help me with Circles and Composite Figures?​

Answers

Answer:

What type 9f composite figure?

Step-by-step explanation:

Pls send an attachment

Answer:

please can you bring the images of the circles and Composite Figures you want us to help you out.

Step-by-step explanation:

There is no attachment so please how can your question be answered.

Pls help pls pls than you

Answers

Answer:

b

Step-by-step explanation:

8*5=40

40*1/3=40/3

(07.02)

What is the value of x in the equation 3(2x + 8) = 0? (4 points)

−8

8

4

−4

Answers

Answer:

your answer is D-4

Step-by-step explanation:

3(2x+8)=0

Step 1: Simplify both sides of the equation.

3(2x+8)=0

(3)(2x)+(3)(8)=0(Distribute)

6x+24=0

Step 2: Subtract 24 from both sides.

6x+24−24=0−24

6x=−24

Step 3: Divide both sides by 6.

6x

6

=

−24

6

x=−4

Hope this helped.

rhoda pays for internet access each month The graph shows the relaionship

Answers

Answer:

more info??

Step By Step:

5) Find the value of x

Answers

Answer:

Step-by-step explanation:

Answer:

x = 12

if the angles are vertical, they are congruent

Use factoring to write an expression that is equivalent to 28w - 40.

Answers

Answer:

4(7w+10)

Step-by-step explanation:

Answer:

4(7w+10)

Step-by-step explanation:

Care este cel mai mic număr dintre 95.999,96.959,99.595 și 99.995 la care cifra unităților de mii este 5

Answers

Răspuns:

95.999

Explicație pas cu pas:

Care este cel mai mic număr între 95.999; 96.959; 99.595 și 99.995, unde numărul de mii este 5

95.999 = Nouăzeci și cinci de mii nouă sute nouăzeci și nouă

96.959 = Nouăzeci și șase de mii nouă sute cincizeci și nouă

99595 = Nouăzeci și nouă de mii cinci sute nouăzeci și cinci

99995 = Nouăzeci și nouă de mii, Nouă sute nouăzeci și cinci.

Folosind cunoștințele despre linia numerică:

95.999 <96.959 <99.595 <99.995

URGENT!!!!

25/90= 0.27
WHAT IS O.27 ROUNDED TO THE NEAREST TENTH!!

PLEASE ANSWER!!

Answers

Answer:

0.3 since the 7 is bigger than 4 :)) just round up the tenth is the number after the decimal

the answer is 0.3. have a great day :))

PLEASE HELP ASAP!!
Please could I have the answers or step by step I don’t mind just PLEASEE help asap!!

Answers

Ok first you need to get a common denominator of 3 and 5 the smallest one would be 15 so then you rewrite both but remember if you do something to the bottom u have to do it to the top so you multiplied 3by 5 to get 15 to get your bottom then you have to times 5by 1 to get 5. So 5/15,same process for 3/5




5/15+ 9/15=9+5=14 so 14/15 (you keep the bottom the same) also it doesn’t need to be simplified because nothing can go into 14and 15 evenly





Same process for subtracting just subtract in the end so...

30/35-14/35= 16/35 also can’t be simplified evenly
In the end your answers are

1.14/15
2.16/35

Help plz I will give brainliest that’s what they say right

Answers

Answer: A

Step-by-step explanation:

(f+g)x

4x - 9 +  12x +7

4x +12x - 9 +7

16x  - 2

answer - (f+g)x = 16x -2

Each TTF site bought a new rope bridge for 4,500. TTF will make monthly payments of $350 until the bill is paid. Write an equation for the unpaid balance B after m monthly payments

Answers

Answer: 4500 - 350m

Step-by-step explanation:

From the question, we are informed that each TTF site bought a new rope bridge for 4,500 and that TTF will make monthly payments of $350 until the bill is paid.

The equation for the unpaid balance B after m monthly payments will be:

= 4500 - 350m

where me = number of months

For example, if the number of months used is 4 months, the unique balance will be:

= 4500 - 350m

= 4500 - 350(4)

= 4500 - 1200

= 3300

Find the measure of the exterior angle.

Answers

Answer: 108 degrees

Step-by-step explanation:

An exterior angle of a triangle is equal to the sum of the two remote interior angles. (Remote referring to the farthest angles from the exterior angle) 2a = (a+10) + 44. Combine like terms.

2a = a+ 54. Subtract “a” from both sides.

a= 54

You can check for correctness by plugging in 54 for a. 2(54) = (54+ 10) + 44. 108= 108.

(Remember, the exterior angle should equal the sum of the two remote interior angles)

Find the area of this composite figure.

Answers

Answer: ≈ 551.71 ft²

All work is shown in the picture.

Answer:

551,7

see in the picture, this composite figure is made up of a rectangle and 2 halves of a circle

=> the area of this composite figure = the area of a rectangle + the area of a circle

+) the area of the rectangle = 15.25 = 375

+) the area of the circle = (15/2)².pi = 56,25pi

=> the area of this figure = 375 + 56,25pi = 551,7

19 3/7 - 12 6/7

Plz show how u got your answer

Answers

Answer:

16 4/7

Step-by-step explanation:

First, you cant subtract 3/7 from 6/7 so take 1 from 19, which turns it to 18. And add that one to 3/7 to get 10/7, or just add 7 to your numerator. So now you have 18 10/7 - 12 6/7. so subtract 18 - 12 to get 6, and the subtract 10/7 - 6/7 to get 4/7. You dont actually have to subtract the denominator just the numerators, because the denominatos are the same so you leave them just the way they are. I hope this helps :)

Work out m and c for the line:
y= 2x + 5

Answers

Y = mx + c
m = 2
c = 5

answer this! i’ll give brainliest

Answers

Answer:

-0.6, -1/4, 0.3, 1/2

Step-by-step explanation:

Give me brainliest.

Answer:

-0.6, -1/4, 0.3, 1/2

Step-by-step explanation:

Tom received 55 dollars for his birthday. He went to a sporting goods store and bought a baseball glove, baseball, and bat. He had 10 dollars left over, how much did he spent on the baseball gear ?

Answers

Answer:

$45

Step-by-step explanation:

Given that :

Amount collected = $55

Amount left after purchasing sporting gear = $10

The cost of sorting gear:

Amount collected - amount left after purchase

$55 - $10 = $45

What is the solution of 5y + 2 = 42?

Answers

The answer is y = 8 from the photo
y=8
Hope this helps, mark brainliest if I helped any!

Consider U = {x|x is a negative real number}. Which is an empty set? {x|x ∈ U and x has a negative cube root} {x|x ∈ U and x has a negative square root} {x|x ∈ U and x is equal to the product of a positive number and –1} {x|x ∈ U and x is equal to the sum of one negative and one positive number}

Answers

Answer:

{x\ x e U and x has a negative square root} is an empty set.

Step-by-step explanation:

If x e U, x is a negative real number, and they don't have a square root (they don't have even roots). Their square roots are complex numbers, not real ones.

The set that will give an empty set will be {x|x ∈ U and x has a negative square root}

What is a set?

A set is a collection of numbers or objects. They are not necessarily arranged in pattern.

Given the following sets

r U = {x|x is a negative real number}

We are to determine the set that is empty. This means we need the set of numbers that are not real numbers.

The square root of a negative number will give a complex number. Hence the set that will give an empty set will be {x|x ∈ U and x has a negative square root}

Learn more on set here: https://brainly.com/question/2166579

Which equations are equivalent to -1/4(x)+3/4=12? Select all that apply.

(-4x/1)+3/4=12

-1(x/4)+3/4=12

-x+3/4=12

1/4(x+3)=12

(-x/4)+3/4=12



HELP

Answers

Answer:

B and E

Step-by-step explanation:

B,C,E

is the full answer

Sadie had 55 stickers. Each day she gave away 5 stickers to her friends.
Write an equation to model this situation in the form y = mx + b, but do not
include any spaces in your answers. (for example y=6x+1)

Answers

Answer:

55 = 5x

Step-by-step explanation:

Sadie had 55 stickers. Each day she gave away 5 stickers to her friends.

Write an equation to model this situation in the form y = mx + b, but do not

include any spaces in your answers. (for example y=6x+1)

Equation to model this situation in the form y = mx + b,

y = Total number of stickers she had

x = Number of days that she gave away sticker

b = Fixed value = 0

Hence:

55 = 5x + b

b = Fixed value = 0

Therefore, the situation is represented as:

55 = 5x

Help please? :) I need some help !!!!!!!!!

Answers

Answer:

i gotchu step sis u need help with them laundry's

Step-by-step explanation:

Answer:

Answer:

answer is 8

Step-by-step explanation:

put the equations equal to each other

then simplify

it is bcz of a angle type of parallel lines

corresponding angle

Step-by-step explanation:

Write an equation in slope-intercept form of the line that passes through the points (- 2, - 2) and (5, 12)

The equation is y=

Answers

Answer:

y= 2 x + 2 i think

Step-by-step explanation:

The radius of a circle measures 9 inches what is the measure of the diameter
O 4.5 inches
O 18 inches
O 20.25 inches
O 81 inches

Answers

18 inches
R= 9
D= 9 x 2
D=18

If 18 oz of laundry detergent costs $14.94. What is the unit rate?

Answers

Answer: $2.45

Step-by-step explanation:

Choose all of the points that are solutions to the equation y = x ^ 2-3x-4 .

Answers

Answer:(0,-4), (1,0), (2,6)

please help me
!!!!!!!!!!!!!

Answers

Answer:

Hey y = 16

sorry can't find x and z

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